Air purifier



1. Air purifier

1.1 : Top

1.2 : Bottom

1.3 : Front

1.4 : Back

1.5 : Left

1.6 : Right

1.7 : Perspective

1.8 : Perspective

The broken lines shown in the figures depict portions of the air purifier that form no part of the claimed design. 

CLAIM The ornamental design for an air purifier, as shown and described. 